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Annotation of 43BSDTahoe/sys/vaxuba/uureg.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1986 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  *
                      6:  *     @(#)uureg.h     7.1 (Berkeley) 6/5/86
                      7:  */
                      8: 
                      9: 
                     10: /*
                     11:  * DL11-E/DL11-W UNIBUS (for TU58) controller registers
                     12:  */
                     13: struct uudevice {
                     14:        short   rcs;    /* receiver status register */
                     15:        short   rdb;    /* receiver data buffer register */
                     16:        short   tcs;    /* transmitter status register */
                     17:        short   tdb;    /* transmitter data buffer register */
                     18: };
                     19: 
                     20: /*
                     21:  * Receiver/transmitter status register status/command bits
                     22:  */
                     23: #define UUCS_DONE      0x80    /* done/ready */
                     24: #define        UUCS_READY      0x80
                     25: #define UUCS_INTR      0x40    /* interrupt enable */
                     26: #define        UUCS_MAINT      0x02    /* maintenance check (xmitter only) */
                     27: #define        UUCS_BREAK      0x01    /* send break (xmitter only) */
                     28: 
                     29: /*
                     30:  * Receiver data buffer register status bits
                     31:  */
                     32: #define        UURDB_ERROR     0x8000  /* Error (overrun or break) */
                     33: #define UURDB_ORUN     0x4000  /* Data overrun error */
                     34: #define        UURDB_BREAK     0x2000  /* TU58 break */
                     35: 
                     36: #define        UUDB_DMASK      0x00ff  /* data mask (send and receive data) */
                     37: 

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